Global Patent Index - EP 0468509 A3

EP 0468509 A3 19921125 - MATCHING NETWORK

Title (en)

MATCHING NETWORK

Publication

EP 0468509 A3 19921125 (EN)

Application

EP 91112528 A 19910725

Priority

US 55829090 A 19900726

Abstract (en)

[origin: US5065118A] A matching network matches an output impedance of a source with an input impedance of a load. The matching network includes a plurality of transmission line stubs. Each transmission line stub includes a first transmission line conductor, a second transmission line conductor running parallel to but not in electrical contact with the first transmission line conductor, and ferrite dielectric material between the first transmission line conductor and the second transmission line conductor. A magnetic field is used to vary the relative permeability of the ferrite dielectric material.

IPC 1-7

H01P 5/04

IPC 8 full level

G01R 31/00 (2006.01); H01J 37/32 (2006.01); H01P 5/02 (2006.01); H01P 5/04 (2006.01)

CPC (source: EP KR US)

H01J 37/32192 (2013.01 - EP US); H01J 37/32256 (2013.01 - EP US); H01P 5/04 (2013.01 - EP US); H03H 7/38 (2013.01 - KR)

Citation (search report)

  • [A] GB 882121 A 19611115 - WESTERN ELECTRIC CO
  • [A] US 3384841 A 19680521 - DI PIAZZA GERALD C
  • [A] PATENT ABSTRACTS OF JAPAN vol. 14, no. 383 (E-966)17 August 1990 & JP-A-2 141 101 ( DAIHEN CORP ) 30 May 1990
  • [A] REVIEW OF SCIENTIFIC INSTRUMENTS vol. 60, no. 2, February 1989, NEW YORK, US pages 244 - 248; GANGULI, A. ET AL.: 'High power microwave line with arbitrary impedance matching capability for plasma applications'

Designated contracting state (EPC)

DE FR GB NL

DOCDB simple family (publication)

US 5065118 A 19911112; EP 0468509 A2 19920129; EP 0468509 A3 19921125; JP 2571882 B2 19970116; JP H04243303 A 19920831; KR 920003631 A 19920229

DOCDB simple family (application)

US 55829090 A 19900726; EP 91112528 A 19910725; JP 18104391 A 19910722; KR 910012748 A 19910725